Huawei Technologies Co., Limited

Tencent Technology (shenzhen) Company Limited

Lu Wu

Yong Liang Liu

Xiaoyan Bi

Wei Han

Xiang Ren

Peng Shang

Huangping Jin

Yi Huang

Hongzhe Shi

Jin Liu

Yi Qin

Yong Liu

Shibin Ge

Lu Rong

Dageng Chen

Yaoguang Chen

Yaoxin Liu

A reference signal sending or receiving method includes: determining, by the network device, a plurality of resource elements REs used to carry a first CSI-RS, where the plurality of REs are distributed in a plurality of resource units, and in each resource unit, a plurality of REs used to carry the first CSI-RS are located on a plurality of subcarriers in a same symbol, values of the first CSI-RS carried on at least two REs are different, and values of the first CSI-RS are loaded to the plurality of REs in the resource unit by using a first multiplex code; and sending, by the network device, the first CSI-RS to the terminal device by using the plurality of REs.

Reference signal sending method, reference signal receiving method, network device, and terminal device

Embodiments of the present disclosure include channel state information processing methods and apparatuses. One example method includes configuring, by a network device, at least one piece of CSI reporting configuration information and resource configuration information corresponding to the CSI reporting configuration information, where one piece of the CSI reporting configuration information corresponds to at least two pieces of resource configuration information, wherein one resource configuration information is used for interference measurement and includes a CSI-RS resource set, wherein one resource configuration information is used for channel measurement and includes a NZP CSI-RS resource, and wherein one CSI-RS resource set corresponds to at least one CSI report. The at least one piece of CSI reporting configuration information and the resource configuration information is sent to a terminal device.

Channel state information processing method and apparatus thereof

Embodiments of the present invention provide a method and an apparatus for sending a reference signal, and a method and an apparatus for obtaining a reference signal. The method for sending a reference signal includes: determining, based on a resource that is allocated to a reference signal in a basic pattern corresponding to the reference signal and a resource that is allocated to at least one basic pattern in a physical layer transmission unit, a resource occupied by the reference signal in the physical layer transmission unit; and sending the reference signal through the determined resource. It can be learned that, according to the technical solutions provided in the embodiments of the present invention, arrangement of the reference signal in the physical layer transmission unit can be flexibly set.

Method and apparatus for sending reference signal, and method and apparatus for obtaining reference signal

This application relates to the communications field and discloses a reference signal configuration method and apparatus, to improve accuracy of a channel estimation result in a complex and changeable scenario. The method may include: determining configuration information of a first reference signal, where the first reference signal is a reference signal corresponding to a first port that is used in one transmission process, a second port can also be used in the transmission process, and configuration information of a reference signal corresponding to the second port is different from the configuration information of the first reference signal; and configuring the first reference signal based on the configuration information of the first reference signal.

Reference signal configuration method and apparatus

Embodiments of the present disclosure disclose a reference signal pattern transmission method and an apparatus therefor. The method includes: determining, a quantity N of symbols occupied by a CSI-RS resource, and N={1, 2, 4}; obtaining, a pattern of the CSI-RS resource; and sending, configuration information to a terminal device, N=1, the pattern of the CSI-RS resource occupies one RE in time domain, and occupies at least four consecutive REs in frequency domain; or N=2, the pattern of the CSI-RS resource occupies two consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain; or N=4, the pattern of the CSI-RS resource occupies four consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain. According to the embodiments of the present disclosure, a design of a pattern of a channel state information-reference signal resource in a 5G system can be implemented.

Reference signal pattern transmission method and apparatus therefor

Embodiments of the present disclosure provide a method and an apparatus for sending a reference signal, and a method and an apparatus for obtaining a reference signal. The method for sending a reference signal includes: determining, based on a resource that is allocated to a reference signal in a basic pattern corresponding to the reference signal and a resource that is allocated to at least one basic pattern in a physical layer transmission unit, a resource occupied by the reference signal in the physical layer transmission unit; and sending the reference signal through the determined resource. It can be learned that, according to the technical solutions provided in the embodiments of the present disclosure, arrangement of the reference signal in the physical layer transmission unit can be flexibly set.

This application discloses a resource indication method, and a related device and system. The method includes: generating resource indication information, where the resource indication information is used to indicate a reference signal resource allocated to a terminal device in a reference signal resource group in which the terminal device is located among a plurality of reference signal resource groups; and sending the resource indication information. According to the foregoing solution, flexibility of configuring the reference signal resource can be improved, so that better resource sharing is implemented and resource overheads are reduced.

Resource indication method, and related device and system

Embodiments of this application disclose a method and apparatus for sending a demodulation reference signal, and a demodulation method and apparatus, and relate to the field of communications technologies. The method for sending a demodulation reference signal may include: generating a demodulation reference signal, where a sequence length of the demodulation reference signal is related to an attribute of the demodulation reference signal; and sending the demodulation reference signal.

Method and apparatus for sending demodulation reference signal, and demodulation method and apparatus

This application discloses a reference signal sending method and apparatus, to resolve a problem that only a fixed mapping manner and a single function are available in an existing RS mapping and configuration solution, so as to improve spectral efficiency. The method includes: determining a time-frequency resource used to carry a first reference signal, where the time-frequency resource is a dedicated time-frequency resource of at least one second reference signal; and sending the first reference signal by using the determined time-frequency resource.

Reference signal sending method and apparatus

Embodiments of this application disclose a precoding matrix determining method and apparatus, to determine a stage-1 precoding matrix based on indication information that is of a spatial correlation matrix and that is fed back by a terminal, thereby implementing three-dimensional precoding based on a channel state and increasing a channel capacity. The method includes: sending, by a base station, a plurality of groups of first reference signals, where the plurality of groups of first reference signals are in a one-to-one correspondence with a plurality of dimensions of an antenna array, and each of the plurality of groups of first reference signals is used by a terminal to estimate spatial correlation matrix information in a corresponding dimension; receiving the spatial correlation matrix information fed back by the terminal based on the plurality of groups of first reference signals; and determining a stage-1 precoding matrix based on the spatial correlation matrix information.

Precoding matrix determining method and apparatus

This application discloses an indication method and apparatus, to support a requirement of a complex and fickle scenario. The method includes: generating and sending an arrangement indication used to indicate an arrangement manner of a reference signal, where the reference signal occupies at least one group of time frequency resources, and the arrangement manner is frequency division, time division, frequency division+code division, or time division+code division; in the frequency division manner, each group of time frequency resources occupy a symbol in time domain and at least one contiguous subcarrier in frequency domain; in the time division manner, each group of time frequency resources occupy at least one contiguous symbol in time domain and a subcarrier in frequency domain.

Reference signal indication method and apparatus to improve spectrum efficiency

Embodiments of the present disclosure disclose a precoding configuration method, device, and system. The precoding configuration method includes: generating precoding configuration information, where the precoding configuration information is used to configure a width of a frequency band for same precoding; and sending the precoding configuration information. The embodiments of the present disclosure further provide a transmit end device, a receive end device, and the precoding configuration system. In the precoding configuration method provided in the embodiments of the present disclosure, the precoding configuration information is generated and sent, so that a receive end can determine, based on the precoding configuration information, the width of the frequency band for same precoding. In the prior art, the width of the frequency band for same precoding is determined based on only system bandwidth, while the width of the frequency band for same precoding can be flexibly determined in the technical solutions provided in the embodiments of the present disclosure, so that requirements of a wireless communications system can be met in diversified scenarios, and system performance can be effectively optimized in different scenarios.

Precoding configuration method, device, and system

The present invention discloses an inter-base station beam configuration and management method, a base station, user equipment, and a system. The method includes: receiving, by user equipment, a beam signal sent by a base station; determining, by the user equipment, a receive beam based on the sent beam signal; receiving, by the base station, a beam signal sent by a terminal device; determining, by the base station, a receive beam based on the sent beam signal; performing dynamic selection and fast beam switching between base stations in combination with a coordinated multi-point technology; and performing fast beam alignment between the base station end with the user equipment end. This application can effectively implement fast beam switching and alignment between base stations and support dynamic base station selection, thereby improving link reliability.

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Shenzhen, China

Lu Wu